Code

2025-08-08 10:41:30 +02:00
parent 4444be3799
commit a5df3861fd
1674 changed files with 234266 additions and 0 deletions
--- a/Code/venv/lib/python3.13/site-packages/pyasn1_modules/rfc8696.py
+++ b/Code/venv/lib/python3.13/site-packages/pyasn1_modules/rfc8696.py
@ -0,0 +1,104 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Created by Russ Housley with some assistance from asn1ate v.0.6.0.
+#
+# Copyright (c) 2019, Vigil Security, LLC
+# License: http://snmplabs.com/pyasn1/license.html
+#
+# Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)
+#
+# ASN.1 source from:
+# https://www.rfc-editor.org/rfc/rfc8696.txt
+#
+
+from pyasn1.type import constraint
+from pyasn1.type import namedtype
+from pyasn1.type import namedval
+from pyasn1.type import tag
+from pyasn1.type import univ
+
+from pyasn1_modules import rfc5652
+
+MAX = float('inf')
+
+
+id_ori = univ.ObjectIdentifier('1.2.840.113549.1.9.16.13')
+
+id_ori_keyTransPSK = univ.ObjectIdentifier('1.2.840.113549.1.9.16.13.1')
+
+id_ori_keyAgreePSK = univ.ObjectIdentifier('1.2.840.113549.1.9.16.13.2')
+
+
+class PreSharedKeyIdentifier(univ.OctetString):
+    pass
+
+
+class KeyTransRecipientInfos(univ.SequenceOf):
+    componentType = rfc5652.KeyTransRecipientInfo()
+
+
+class KeyTransPSKRecipientInfo(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('version',
+            rfc5652.CMSVersion()),
+        namedtype.NamedType('pskid',
+            PreSharedKeyIdentifier()),
+        namedtype.NamedType('kdfAlgorithm',
+            rfc5652.KeyDerivationAlgorithmIdentifier()),
+        namedtype.NamedType('keyEncryptionAlgorithm',
+            rfc5652.KeyEncryptionAlgorithmIdentifier()),
+        namedtype.NamedType('ktris',
+            KeyTransRecipientInfos()),
+        namedtype.NamedType('encryptedKey',
+            rfc5652.EncryptedKey())
+    )
+
+
+class KeyAgreePSKRecipientInfo(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('version',
+            rfc5652.CMSVersion()),
+        namedtype.NamedType('pskid',
+            PreSharedKeyIdentifier()),
+        namedtype.NamedType('originator',
+            rfc5652.OriginatorIdentifierOrKey().subtype(explicitTag=tag.Tag(
+                tag.tagClassContext, tag.tagFormatConstructed, 0))),
+        namedtype.OptionalNamedType('ukm',
+            rfc5652.UserKeyingMaterial().subtype(explicitTag=tag.Tag(
+                tag.tagClassContext, tag.tagFormatSimple, 1))),
+        namedtype.NamedType('kdfAlgorithm',
+            rfc5652.KeyDerivationAlgorithmIdentifier()),
+        namedtype.NamedType('keyEncryptionAlgorithm',
+            rfc5652.KeyEncryptionAlgorithmIdentifier()),
+        namedtype.NamedType('recipientEncryptedKeys',
+            rfc5652.RecipientEncryptedKeys())
+    )
+
+
+class CMSORIforPSKOtherInfo(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('psk',
+            univ.OctetString()),
+        namedtype.NamedType('keyMgmtAlgType',
+            univ.Enumerated(namedValues=namedval.NamedValues(
+                ('keyTrans', 5), ('keyAgree', 10)))),
+        namedtype.NamedType('keyEncryptionAlgorithm',
+            rfc5652.KeyEncryptionAlgorithmIdentifier()),
+        namedtype.NamedType('pskLength',
+            univ.Integer().subtype(
+                subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
+        namedtype.NamedType('kdkLength',
+            univ.Integer().subtype(
+                subtypeSpec=constraint.ValueRangeConstraint(1, MAX)))
+    )
+
+
+# Update the CMS Other Recipient Info map in rfc5652.py
+
+_otherRecipientInfoMapUpdate = {
+    id_ori_keyTransPSK: KeyTransPSKRecipientInfo(),
+    id_ori_keyAgreePSK: KeyAgreePSKRecipientInfo(),
+}
+
+rfc5652.otherRecipientInfoMap.update(_otherRecipientInfoMapUpdate)